diff --git a/python/requirements/ml/requirements_rllib.txt b/python/requirements/ml/requirements_rllib.txt
index 9e352bdad292..0471ecbd37ef 100644
--- a/python/requirements/ml/requirements_rllib.txt
+++ b/python/requirements/ml/requirements_rllib.txt
@@ -16,7 +16,7 @@ kaggle_environments==1.7.11
 mlagents_envs==0.28.0
 # For tests on PettingZoo's multi-agent envs.
 pettingzoo==1.22.1; python_version >= '3.7'
-pymunk==6.2.1
+pymunk==6.4.0
 supersuit==3.7.0; python_version >= '3.7'
 # For tests on minigrid.
 minigrid==2.1.0